Centrifuge



FIG. 1 is a perspective view of a centrifuge, showing my new design;

FIG. 2 is a top plan view of the centrifuge shown in FIG. 1

FIG. 3 is a front elevational view of the centrifuge shown in FIG. 1

FIG. 4 is a side elevational view of the centrifuge shown in FIG. 1

FIG. 5 is a side elevational view of the centrifuge shown in FIG. 1

FIG. 6 is a bottom plan view of the centrifuge shown in FIG. 1

FIG. 7 is a rear elevational view of the centrifuge shown in FIG. 1 

The ornamental design for a centrifuge, as shown and described. 